CVE-2021-47263
kernel: gpio: wcd934x: Fix shift-out-of-bounds error
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · May 21, 2024
Updated · November 21, 2025
Description
In the Linux kernel, the following vulnerability has been resolved:
gpio: wcd934x: Fix shift-out-of-bounds error
bit-mask for pins 0 to 4 is BIT(0) to BIT(4) however we ended up with BIT(n - 1) which is not right, and this was caught by below usban check
UBSAN: shift-out-of-bounds in drivers/gpio/gpio-wcd934x.c:34:14
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.6CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:H
CWE-1335 · Incorrect Bitwise Shift of Integer